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Conference vmszoo::rc

Title:Welcome To The Radio Control Conference
Notice:dir's in 11, who's who in 4, sales in 6, auctions 19
Moderator:VMSSG::FRIEDRICHS
Created:Tue Jan 13 1987
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1706
Total number of notes:27193

1392.0. "JR X347 Programming Problem" by USRCV2::BLUMJ () Thu Dec 12 1991 08:43

    My RObbe Arcus is ready for its maiden flight, except for one small
    programming detail on my JR X347, which I hope someone can help me
    with.  I am trying to use an RCD micro 5 channel receiver with the
    motor on/off switch plugged into channel 1, which operates from the
    throttle stick on the transmitter.  This works fine except when I
    activate the crow mixing which allows both the ailerons to rise in
    unison proportionally by advancing the throttle stick(thus acting
    as speed brakes), however, channel 1 is still active and the motor
    will turn on if I use the crow setting.  The radio is in glider
    mode which causes channel 1 to act as spoilers.  Does anyone know
    of any way I can deactivate channel 1 when the crow switch is on,
    but have it active when the crow switch is deactivated?  I also
    tried to use ACRO mode but really did not get anywhere.
    
                                                  Thanks,
    
                                                  Jim
T.RTitleUserPersonal
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1392.1Here's some things to tryZENDIA::REITHJim Reith DTN 226-6102 - LTN2-1/F02Thu Dec 12 1991 09:0410
    Here's something I'd try...
    
    I assume you've got a free mix that connects to the crow switch. Have a
    second mix on the switch which resets channel 1 to always have a -150%
    offset regardless of stick position (mixing 0% but offset -150%) when
    the switch is thrown. Another possibility is to have it mix with
    itself in a negative direction. The more the stick moves the bigger the
    opposite compensation. These are just things I'd initially try. I
    haven't done these personally but it should be doable. These types of
    features are what makes having multiple mixes on the same switch nice.
1392.2My setup is almost what you wantCSOVAX::MILLSThu Dec 12 1991 15:1710
    
    I have crow mode and throttle on motor working on the stock 7 ch rx.
    But The crow mode is all or nothing using the crow switch. I didn't
    know you could set it up variable on the throttle unless you mixed
    it your self. I didn't really spend a lot of time on it. It just
    worked out that way and it worked great.
    
    I'd be interested in what you learn/find out. Because it is this setup
    that I bought the radio for.
    
1392.3WhoopsCSOVAX::MILLSThu Dec 12 1991 19:316
    Whoops, your right. I did not check the throttle while in crow
    mode. Gee the airelons move don't they :-). It seems it sort of
    works out because when the throttle is off it's in full crow.
    I guess I could move the motor to a spare channel which you don't
    have the option of which the RCD 5 ch rx. Let us know what you
    find out. You might give JR a call also.
1392.4Fixed w/ 7 channel rxUSRCV2::BLUMJMon Dec 16 1991 09:2412
    I got the ARCUS programming squared away over the weekend.  To make
    it work I needed to go back to the 7-channel receiver and use ACRO
    mode.  The ailerons are plugged into channels 2 and 6, and the motor
    control is plugged into channel 7.  The ailerons work as spoilerons
    when the throttle stick is advanced and the motor can be operated in
    on/off mode with mix switch 2.  I have a feeling there is a way to
    do this with a 5 channel receiver in glider mode, but I have not
    figured it out yet.  
    
                                                      Regards,
    
                                                      Jim
1392.55 channels sort of works even betterNICCTR::MILLSMon Dec 16 1991 11:499
    I thought you wanted crow (airelons up). Like I said in .-? I do have
    it all working on 5 channels by accident. When crow is off all is
    normal. When crow is on and throttle off the airelons go up. If I push
    on the throttle the airelons straghten out as the motor comes on. It's
    great because if I turn the motor and forget to shut off crow it does
    the right thing. You could set the trip point of your speed control at
    the very end of the throw so that you can get variable crow without
    turning on the motor.
    
1392.6Error in manual!!!!!!UNYEM::BLUMJWed Sep 08 1993 15:1718
    I learned a very expensive(time and aggravation wise) lesson over the
    weekend.
    
    The callouts in the JR X-347 manual for the ailerons are reversed
    when in Glider mode!  This results in differential working
    just the opposite manner(more down than up).
    
    I know there are other ways to achieve differential(ie servo
    travel adjust), but I found it easier to use the differential
    parameter.
    
    To summarize, channel 2 is called out as left aileron in the manual
    when it should be right.  Channel 5 is called out at right aileron
    when it should be left.
    
                                               Regards,
    
                                               Jim